# Square of the distance with `other`
	#
	# May be used as an approximation to compare distance between two points.
	#
	# ~~~
	# var p0 = new Point[Float](0.0, 0.0)
	# var p1 = new Point[Float](2.0, 3.0)
	# assert p0.dist2(p1) == 13.0
	# ~~~
	#
	# If `self` or `other` are in 3D, the distance takes into account the 3 axes.
	# For a 2D point, the Z coordinate is considered to be 0.
	#
	# ~~~
	# var p2 = new Point3d[Float](0.0, 0.0, 0.0)
	# var p3 = new Point3d[Float](2.0, 3.0, 4.0)
	# var p4 = new Point[Float](2.0, 3.0)
	# assert p2.dist2(p3).is_approx(29.0, 0.01)
	# assert p2.dist2(p4).is_approx(13.0, 0.01)
	# assert p4.dist2(p2).is_approx(13.0, 0.01)
	# ~~~
	fun dist2(other: Point[Numeric]): N
	do return x.value_of(other.dist2_with_2d(self))